CBSE Questions for Class 8 Maths Introduction To Graphs Quiz 5 - MCQExams.com

The line graph represent the net sales rate of Apple company from the year $$2003-2013$$. Find the increase in sales rate during $$2005-2007$$.

462007_6707db8c095b480084cd02116dc07fdb.png
  • $$16,000$$ millions
  • $$8,000$$ millions
  • $$26,000$$ millions
  • $$32,000$$ millions
How many watches were sold in all 5 months?
508238_7571a4b806244c1cb58a25ffd62354fc.png
  • 160
  • 180
  • 175
  • 170
In which pair of years was the number of candidates qualified, the same?

547121.JPG
  • 1995 and 1997
  • 1995 and 2000
  • 1998 and 1999
  • Data inadequate
The figure above shows the cost of joining and buying music from a music subscription service. What does the y-intercept of the line most likely represent?
493896_6d87b5a07529468395b41124aa20c2c3.png
  • The cost per song
  • The cost to join the service
  • The cost of buying 20 songs
  • The cost of 20 subscriptions to the service
What was the percentage increase in imports from 1997 to 1998 ?
547024.JPG
  • 72
  • 56
  • 28
  • Data inadequate
The horizontal line in the graph is called ______.
  • X-axis
  • Y-axis
  • Line
  • None of these
The line graph shows the number of storybooks Armaan read in the last $$4$$ months of a year.
The number of storybooks that he read in October as a fraction of the total number of storybooks read is

758979_74a8ac89078d466a9913bc41e7bf85f3.JPG
  • $$\dfrac {1}{12}$$
  • $$\dfrac {3}{4}$$
  • $$\dfrac {1}{2}$$
  • $$\dfrac {5}{12}$$
In which of the given states, the total production of rice and wheat is the least?
724142_dd0d2ee9a9bf4c4887d9b54c2eb6e5ba.png
  • W.B.
  • M.P.
  • Maharashtra
  • Haryana
The vertices of a triangle are $$A({x}_{1},{x}_{1}\tan{\alpha}),B({x}_{2},{x}_{2}\tan{\beta})$$ and $$C({x}_{3},{x}_{3}\tan{\gamma})$$. If the circumcentre of the triangle $$ABC$$ coincides with the origin and $$H(a,b)$$ be its orthocentre then $$\cfrac{a}{b}$$ is equal to
  • $$\dfrac{x_1+x_2+x_3}{x_1\tan\alpha+x_2\tan\beta+x_3\tan\gamma}$$
  • $$\dfrac{x_1+x_2+x_3}{x_1\cot\alpha+x_2\cot\beta+x_3\cot\gamma}$$
  • $$\dfrac{-x_1+x_2+x_3}{-x_1\tan\alpha+x_2\tan\beta+x_3\tan\gamma}$$
  • None of these
Study the graph and answer the following questions.
How many less burgers were sold on Thursday than on Monday?
722977_dc5875607e264428bc620c52ed78bd63.png
  • $$50$$
  • $$20$$
  • $$35$$
  • $$10$$
The line graph shows the amount of water used by Jamie from March to July. Express the amount of water used in June as a fraction of the total amount of water used.

723038_7bbe5651e5634d82b3ff83abfcf76d52.png
  • $$\displaystyle \frac{3}{14}$$
  • $$\displaystyle \frac{1}{7}$$
  • $$\displaystyle \frac{2}{7}$$
  • $$\displaystyle \frac{3}{140}$$
A histogram is a type of data represantion.
  • True
  • False
Histogram is a type of _____.
  • Geometric diagram
  • Frequency diagram
  • Both A and B
  • Arithmetic line graph
________ is a set of rectangles with bases as the intervals between class 
boundaries (along X-axis) and with are as proportional to the class frequency.
  • Bar diagram
  • Component bar diagram
  • Histogram
  • Multiple bar diagram
Choose the correct answer from the alternatives given :
Directions for questions $$71$$ to $$75$$: Study the following graph carefully to answer these questions.
Production (in lakh tonnes) of six units of a company in $$2006$$ and $$2007$$.
What is the difference in the production (in lakh tonnes) of all companies in $$2006$$ and $$2007$$?

904799_20a51a639b3d49339ba77e6ddb8a7812.png
  • $$45$$
  • $$75$$
  • $$100$$
  • $$125$$
Choose the correct answer from the alternatives given :
Directions for questions $$71$$ to $$75$$: Study the following graph carefully to answer these questions.
Production (in lakh tonnes) of six units of a company in $$2006$$ and $$2007$$.
What is the average production of all units (in lakh tonnes) for the year $$2007$$?
904801_e31e81048e8d42818d61e45a2f4837a6.png
  • $$95$$
  • $$92$$
  • $$87$$
  • $$93$$
If the vertices of a triangle are $$(a,1),(b,3)$$ and $$(4,c)$$, then the centroid of the triangle will lie on x-axis, if: 
  • $$c = -4$$
  • $$a+b+c = 0$$
  • $$a= -2$$
  • $$b= -4$$
All the points lying inside the triangle formed by the points $$(0,4),(2,5)$$ and $$(6,2)$$ satisfy 
  • $$3x+2y+8 > 0$$
  • $$2x+y-10 > 0$$
  • $$2x-3y-11 > 0$$
  • $$-2x+y-3 > 0$$
The following bar graph (Fig.) represents the heights (in cm) of 50 students of Class XI of a particular school. Study the graph and answer the following questions:
State whether true or false:
There are 9 students in the class whose heights are in the range of 155-159 cm.
1675626_5ed9f8b33d214e788bc11916f156121c.png
  • True
  • False
If $$35\%$$ of the people residing in a locality are Sikhs then the central angle of the sector representing the Sikh community in the pie chart would be
  • $$108^\circ$$
  • $$115^\circ$$
  • $$126^\circ$$
  • $$135^\circ$$
Data was collected on a student's typing rate and graph was drawn as shown below. Approximately how many words had this student typed in $$30$$ seconds?
1792568_6a5ea8da3e594520a106aa513b05bb86.png
  • $$20$$
  • $$24$$
  • $$28$$
  • $$34$$
In a bar graph, the width of bars may be unequal. 
  • True
  • False
A line graph can also be a whole unbroken line.
  • True
  • False
For fixing a point on the graph sheet we need two coordinates.
  • True
  • False
The y-coordinate of any point lying on the x-axis will be zero.
  • True
  • False
That point is called where $$ X X $$ and $$ Y^{\prime} Y $$ cuts each other
  • Co-ordinate
  • Origin
  • Vertical
  • Horizontal line
A rectangle ABCD is inscribed in the circle $$ x^2 + y^2 + 3x + 12y + 2 = 0$$. If the co-ordinates of A and B are $$(3, -2)$$ and $$(-2, 0)$$, then the other two vertices of the rectangle are
  • $$(-6, -10)$$
  • $$(-1, -12)$$
  • $$(1, 12)$$
  • $$(6, 10)$$
Tangents are drawn to the circle $$x^2+y^2=50$$ from a point 'P' lying on the x-axis.These tangents meet the y-axis at points $$'P_1'\, and |, 'P_2'$$.Possible coordinates of 'P' so that area of triangle $$PP_1+2$$ is minimum, is / are 
  • (10,0)
  • $$(10\sqrt{2},0)$$
  • (-10,0)
  • $$(-10\sqrt{2},0)$$
The abscissae of two points $$A \text { and } B$$ are the roots of the equation $$x ^ { 2 } + 2 a x - b ^ { 2 } = 0$$ ,and their coordinates are the roots of the equation $$x ^ { 2 } + 2 p x - q ^ { 2 } = 0$$ .Then the radius of the circle with $$A B$$ as diameter is
  • $$\sqrt { a ^ { 2 } + p ^ { 2 } }$$
  • $$\sqrt { b ^ { 2 } + q ^ { 2 } }$$
  • $$\sqrt { a ^ { 2 } + b ^ { 2 } }$$
  • $$\sqrt { a ^ { 2 } + b ^ { 2 } + p ^ { 2 } + q ^ { 2 } }$$
Three normal $$AA_1$$, $$BB_1$$ and $$CC_1$$ are drawn from a point P(h, k) to the parabola $$y^2=4ax$$, at A, B and C points. The following conditions are satisfied by the three normals.
(i) any two of three normals are coincide
(ii) S(a, $$0$$) be the focus of the parabola
(iii) Three normals be real, then $$h > 2a$$
(iv) Slopes of the normals are $$m_1, m_2$$ and $$m_3$$. If $$m_1m_2=\lambda$$, then the locus of P is a parabola
(v) P lies on the line $$y=\mu$$, then the sides of the triangle ABC touch the parabola $$S'=0$$.

SA SB SC is equal to.
  • $$a(SP)^2$$
  • $$2a(SP)^2$$
  • $$(aSP)^2$$
  • $$4a(SP)^2$$
0:0:1


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